Display device

Abstract

A display device includes: a plurality of pixels each including a driving thin film transistor and a storage capacitor, wherein each of the pixels further includes: a driving semiconductor layer including a driving channel region, a driving source region, and a driving drain region; a first electrode layer, a portion of the first electrode layer overlapping the driving channel region; a second electrode layer overlapping the first electrode layer; a node connection line having a first side connected to the first electrode layer; a pixel electrode overlapping the first electrode layer and the second electrode layer; and a shielding layer between the first electrode layer and the pixel electrode and overlapping the first electrode layer, the node connection line, and the pixel electrode.

What is claimed is: 
     
       1. A display device, comprising:
 a scan line extending in a first direction; 
 a data line extending in a second direction; 
 a first transistor comprising a first semiconductor layer electrically connected to the data line., the first semiconductor layer including a first channel region overlapped by a first part of the scan line; 
 a second transistor comprising a second semiconductor layer and a gate electrode layer overlapping a part of the second semiconductor layer; 
 a third transistor comprising a third semiconductor layer; 
 a node connection line electrically connected to the second transistor and the third transistor; 
 a conductive layer comprising a first part overlapping the node connection line; and 
 a first insulation layer disposed between the data line and the conductive layer. 
 
     
     
       2. The display device of  claim 1 , wherein the conductive layer further comprises a second part that extends in the second direction, the first part of the conductive layer protruding from the second part along the first direction. 
     
     
       3. The display device of  claim 1 , further comprising:
 a pixel electrode electrically connected the first, second, and third transistors; 
 an emission layer overlapping the pixel electrode; and 
 an opposite electrode over the emission layer, the emission layer being between the pixel electrode and the opposite electrode. 
 
     
     
       4. The display device of  claim 3 , further comprising a second insulation layer between the conductive layer and the pixel electrode. 
     
     
       5. The display device of  claim 1 , wherein the first part of the conductive layer entirely covers the node connection line. 
     
     
       6. The display device of  claim 1 , wherein the conductive layer overlaps at least a part of the third semiconductor layer. 
     
     
       7. The display device of  claim 6 , wherein the third semiconductor layer comprises a first portion, a second portion, and a third portion between the first portion and the second portion, the first and second portions being overlapped by a part of the scan line. 
     
     
       8. The display device of  claim 1 , wherein the conductive layer comprises a metal material. 
     
     
       9. The display device of  claim 8 , wherein the conductive layer and the data line comprises a same material. 
     
     
       10. The display device of  claim 8 , wherein the metal material comprises at least one selected from molybdenum (Mo), aluminum (Al), copper (Cu), and titanium (Ti). 
     
     
       11. The display device of  claim 10 , further comprising a voltage line extending in the second direction, and
 Wherein the conductive layer is connected to the voltage line via a contact hole in the first insulation layer. 
 
     
     
       12. The display device of  claim 1 , further comprising an electrode layer overlapping the gate electrode layer of the second transistor,
 wherein the conductive layer is electrically connected to the electrode layer. 
 
     
     
       13. A display device, comprising:
 a scan line extending in a first direction; 
 a data line extending in a second direction; 
 a first transistor comprising a first semiconductor layer, the first semiconductor layer including a first channel region overlapped by a first part of the scan line; 
 a second transistor comprising a second semiconductor layer and a first electrode layer overlapping a part of the second semiconductor :layer; 
 a third transistor comprising a third semiconductor layer; 
 a node connection line electrically connected to the second transistor and the third transistor; 
 a conductive layer extending in the second direction, the conductive layer including a first part that overlaps the node connection line; 
 a light emitting diode electrically connected to the first, second, and third transistors; and 
 a first insulation layer disposed between the conductive layer and the light emitting diode. 
 
     
     
       14. The display device of  claim 13 , wherein the third semiconductor layer comprises a first portion, a second portion, and a third portion between the first portion and the second portion, the first and second portions being overlapped by a part of the scan line. 
     
     
       15. The display device of  claim 14 , wherein the conductive layer overlaps at least one of the first portion, the second portion, or the third portion of the third semiconductor layer. 
     
     
       16. The display device of  claim 13 , wherein the conductive layer and the data line comprises a same material. 
     
     
       17. The display device of  claim 16 , wherein the metal material comprises at least one selected from molybdenum (Mo), aluminum (Al), copper (Cu), and titanium (Ti). 
     
     
       18. The display device of  claim 13 , further comprising a second electrode layer overlapping the first electrode layer of the second transistor,
 wherein the conductive layer is electrically connected to the second electrode layer. 
 
     
     
       19. The display device of  claim 13 , further comprising a voltage line extending in the second direction,
 wherein the conductive layer is electrically connected to the voltage line. 
 
     
     
       20. The display device of  claim 19 , further comprising a second insulation layer between the voltage line and the conductive layer,
 wherein the conductive layer is connected to the voltage line via a contact hole in the second insulation layer.